{% if not user.is_authenticated %}
<div class="alert alert-warning">
    <strong class="alert-heading">Warning!</strong>
    You have to <a href="{% url oneliners.views.login %}">login (with an OpenID)</a> to use this page. 
    You can see the page as a demo, but you won't be able to submit the form.
</div>
{% endif %}
